U-Boat Torpedo Timer Case

This is a waterproof case for a U-Boat torpedo timer or pocket watch. It’s missing the lining inside but is otherwise in great condition. This came out of an antique store in Barrie, Ontario. Someone commented that this is definitely a reproduction. I am now certain that this is a fantasy piece. There is a NSRL/DRL type eagle attached rather than a KM one as you would expect.